carburetion

Air-fuel mixture creation

Carburetion is the process of mixing air with fuel to create a combustible vapor in an internal combustion engine.

Before fuel injection became standard in the late twentieth century, carburetors handled this task in most gasoline engines.

The term persists in discussions of older vehicles and small engines like those in lawnmowers and chainsaws.

components

venturi

Constricted passage accelerating flow

jetsPressurized fluid streams
chokeObstruct breathing or airflow
throttlePower flow controller

diaphragm · solenoid · nozzle · gasket · linkage

process

atomization

Reduction to fine particles

vaporizationConversion to gas
meteringControlled measurement of quantity
sprayDispersed liquid droplets

droplets · emulsion · mixing · induction · enrichment · evaporation · dispersion · nebulization

combustion

fuel

Energy source material

airGaseous envelope surrounding Earth
ignitionStarting combustion process
burnDamage by heat

spark · hydrocarbons · oxidation · detonation · pre-ignition · knock

tuning

adjustment

Alteration to improve fit

synchronizingAligning timing precisely
calibrationAdjusting for measurement accuracy
idleWithout activity or purpose

jetting · timing · lean · rich · overhaul · rebuilding · cleaning · troubleshooting

performance

acceleration

Rate velocity changes

horsepowerRate of mechanical work
torqueRotational force measurement
efficiencyProductive without waste

optimization · flow · stalling · hesitation · bog · flat-spot · backfire · flooding

Categories

engine specshorsepower, torque, displacement, RPM, compression ratio
fuel mixingpremix

Opposites

fuel delivery method

carburetionfuel injection

Pressurized engine delivery system

direct injection

Family

carbonated, carbonation, carbonate, carburetor, bicarbonate, carbide, carbonating, decarbonization, decarbonize

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Concrete · Rated G